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Terminals Description - Toyota CQ-ES0470K Service Manual

Audio component, am/fm mpx electronic tuning radio with stereo cassette tape player and 6-disc cd changer
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CQ-ES0470K

6 TERMINALS DESCRIPTION

6.1.
Main Block
IC601 : C2CBKH000100
Pin
Port
Description
No.
1
BEEP
Beep output
2
BIT3
NCA1 rotary switch 3
3
BIT2
NCA1 rotary switch 2
4
BIT1
NCA1 rotary switch 1
5
FAN ON
Not used
(NC)
6
CD-ON
H: CD (IDC) deck
microcomputer
communication is possible
L: CD (IDC) deck micro
computer communication is
not possible
7
CD-
H: Normal L: Reset
RESET
8
CD-
CD (IDC) deck serial
SCKM
communication clock output
9
CD-SOM CD (IDC) deck serial
communication input
10 CD-SIM
CD (IDC) deck serial
communication output
terminal
11 RESET
H: Normal L: Reset
12 XT2 (NC) Not Used
13 XT1
Connecting to GND
14 GND
Ground
15 X2
Oscillation Terminal (Main)
12.396875MHz
16 X1
Oscillation Terminal
(Main)12.396875MHz
17 REGOFF Connecting to GND
18 REGCPU Regulator output stable
capacity connection.
19 VDD0
Positive power supply
20 NC
Not used
21 NC
Not used
22 NC
Not used
23 SHIYOU4 H: Left handle L: Right handle
24 ADIM
H: Tail cancel off notice
L: Tail cancel on notice
25 NC
Not used
26 DSP-
H: When receiving FM 76.0-
CNT
78.9MHz
L: Other than the above
27 DSP-
H: Data in the DSP receiving
BUSY
buffer
L: No data in the DSP
receiving buffer
28 DSP-
DSP reset output
RSTB
29 DSP-CE Enabled chip output for
combined power IC, DSP
30 DSP-CL
Clock output for combined
power IC, DSP
31 DSP-DO Not used (However it is
connected to DSP IC and
thus considered as an input)
32 DSP-DI
Data output for combined
power IC, DSP
33 PW/STB
STBY output for power IC
Y
34 LCD-SCK LCD data clock output
35 LCD-
LCD data input/output
DATA
36 LCD-STB LCD data STB output
Pin
No.
37 LCD-
I/O
Volts (V)
FM AM CD TA
38 LCD-OFF H: Normal L: Displays off
PE
39 LCD-
O
0
0
0
0
I
4.9 4.9 4.8 0
40 GND
I
4.9 4.9 4.8 4.9
41 VDD
I
0
0
0 4.9
42 CD-EJ
-
-
-
-
-
43 CST-EJ
44 MODE-A Mode encoder input A
O
0
0 4.8 0
45 MODE-B Mode encoder input B
46 VOL-A
47 VOL-B
48 SHIYOU1 H: IDC L: CDP
49 SHIYOU2 Ground pull down
O 4.9 4.9 4.9 4.9
50 SHIYOU3 Ground pull down
51 AMNC-
O
0
0 4.8 0
52 MUTE
I
4.9 4.9 2 4.9
53 SD
O 4.9 4.9 3.7 0
54 PLL-SCL PLL data communication
55 PLL-SDA PLL data communication
I
4.9 4.9 4.9 4.9
-
-
-
-
-
56 ST
I
0
0
0
0
-
0
0
0
0
57 MSOUT
O 1.6 1.6 1.6 1.6
58 NC
59 R-IN2
I
1.5 1.5 1.5 1.5
60 F-IN1
-
0
0
0
0
-
3.6 3.6 3.6 3.6
61 MSPL/FF H: FF/REW L: Play
62 DOLBY
-
4.9 4.9 4.9 4.9
63 EQ
O
-
-
-
-
64 NC
O
-
-
-
-
65 NC
O
-
-
-
-
66 NC
I
0
0
0
0
67 NC
I
4.8 4.8 4.8 4.8
68 WP
O
-
-
-
-
O 4.9 0
0
0
69 T-LOAD
I
0.5 0.5 0.5 0.5
70 F/R
71 NC
72 NC
O 4.9 4.9 4.9 4.9
73 TEST
O
0
0
0
0
74 NC(MP)
75 Vcont
O 4.9 4.9 4.9 4.9
76 AMNC-IN AM noise cancel decision
I
0.6 0.5 0.6 0.5
77 NC
O
0
0
0
0
78 ST-SW1 Key input for steering
O 4.9 4.9 4.9 4.9
79 ST-SW2 Key input for steering
O
0
0
0
0
80 MTL
I/O 4.9 4.9 4.9 4.8
81 MSM
O
0
0
0
0
6
Port
Description
H: Key input data
KEYREQ
L: No key data
H: Normal L: Reset
RESET
Ground Terminal
Positive power supply
H: CD eject off L: CD eject on
H: CST-EJ off L: CST-EJ on
Volume encoder input A
Volume encoder input B
H: AMNC off L: AMNC on
ON/OFF
H: Mute on L: Mute off
H: No electric field
L: With electic field
clock output
output
H: No stereo input
L: With stereo input
H: No sounds L: With sounds
Not used
(F-IN1) : L (R-IN2) : -> eject
(F-IN1) : H (R-IN2) : -> brake
(F-IN1) : L (R-IN2) : -> brake
(F-IN1) : H (R-IN2) : -> loads
H: Dolby off L: Dolby on
H: Metal tape L: Normal tape
Not used
Not used
Not used
Not used
H: In E2PROM write protect
(input)
L: E2PROM is writing (output)
H: Cassette holder emitance
L: Normal operation and
cassette holder pushes in
H: Sounds from side B
L: Sounds from side A
Not used
Not used
Connecting to ground
(VPP)
Not used
Analog input of electric field
strength
analog input using the A/D
input
Not used
switch(1)
switch(2)
H: Normal tape L: Metal tape
H: 1 Speed L: 3 Speeds
I/O
Volts (V)
FM AM CD TA
PE
I
0
0
0
0
O 4.9 4.9 4.9 4.9
O 4.9 4.9 4.9 4.9
-
0
0
0
0
-
4.9 4.9 4.9 4.9
I
4.9 4.9 4.9 4.9
I
4.9 4.9 4.9 4.9
I
4.9 4.9 4.9 4.9
I
4.9 4.9 4.9 4.9
I
4.9 4.9 4.9 4.9
I
0.5 0.5 0.5 0.5
I
0
0
0
0
I
0
0
0
0
I
0
0
0
0
O 4.9 0 4.9 4.9
O
0
0
0
0
I
4.9 4.9 3.3 3.3
O 4.9 4.9 4.9 4.9
I/O 4.9 4.9 4.9 4.9
I
4.9 4.9 3.1 3.1
I
4.8 4.8 4.8 0
-
-
-
-
-
O
0
0
0
0
O
0
0
0
0
O
0
0
0
0
O
0
0
0 4.9
I
4.9 4.9 4.8 0
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
I/O 4.9 4.9 4.9 4.9
I
4.9 4.9 4.9 0
O
0
0
0 4.9
-
-
-
-
-
-
-
-
-
-
-
0
0
0
0
O
-
-
-
-
I
0.5 0.8 0
0
I
0
1
0
0
-
-
-
-
-
I
4.9 4.9 4.8 4.9
I
4.9 4.9 4.9 4.9
O
0
0
0 4.9
O
0
0
0 4.9
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